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Build Your Own Clone
Bass Chorus
Kit Instructions
Warranty:
BYOC, Inc. guarantees that your kit will be complete and that all parts and components
will arrive as described, functioning and free of defect. Soldering, clipping, cutting,
stripping, or using any of the components in any way voids this guarantee. BYOC, Inc.
guarantees that the instructions for your kit will be free of any majors errors that would
cause you to permanently damage any components in your kit, but does not guarantee
that the instructions will be free of typos or minor errors. BYOC, Inc. does not warranty
the completed pedal as a whole functioning unit, nor do we warranty any of the
individual parts once they have been used. If you have a component that is used, but feel
it was defective prior to you using it, we reserve the right to determine whether or not the
component was faulty upon arrival. Please direct all warranty issues to:
sales@buildyourownclone.com This would include any missing parts issues.
Return:
BYOC, Inc. accepts returns and exchanges on all products for any reason, as long as they
are unused. We do not accept partial kit returns. Returns and exchanges are for the full
purchase price less the cost of shipping and/or any promotional pricing. Return shipping
is the customer's responsibility. This responsibility not only includes the cost of
shipping, but accountability of deliver as well. Please contact
sales@buildyourownclone.com to receive a return authorization before mailing.
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Summary of Contents for BYOC Bass Chorus
- Page 1 BYOC, Inc. does not warranty the completed pedal as a whole functioning unit, nor do we warranty any of the individual parts once they have been used.
- Page 2 That being said, we will do our best to help you as much as we can. Our philosophy at BYOC is that we will help you only as much as you are willing to help yourself. We have a wonderful and friendly DIY discussion forum with an entire section devoted to the technical support and modifications of BYOC kits.
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Page 3: Table Of Contents
Bass Chorus Kit Instruction Index Parts Checklist………………………....…..page 6 Populating the Circuit Board……....…...…..page 8 Main PCB Assembly..........page 17 Wiring………………………………......page 19 Installing the IC/Finishing up…………………..page 25 Operation Overview...........page 26 Schematic..............page 27... - Page 4 This is what your kit should look like when it’s complete. Your kit may come with different color capacitors, switches etc. Don’t be alarmed by this. They all still do the exact same thing.
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Page 6: Parts Checklist
Parts Checklist for Bass Chorus Kit Resistors: 1 – 100R (101) (Brown/Black/Black/Black/Brown) 1 – 470R (471) (Yellow/Purple/Black/Black/Brown) 1 - 1k (102) (Brown/Black/Black/Brown/Brown) 2 – 2k7 (272) (Red/Purple/Black/Brown/Brown) 3 - 4k7 (472) (Yellow/Purple/Black/Brown/Brown) 16 - 10k (103) (Brown/Black/Black/Red/Brown) 2 – 12k (123) (Brown/Red/Black/Red/Brown) 1 –... - Page 7 2 – B100k (Rate and Depth) 1 – B10k (Blend) Hardware: 1 - predrilled enclosure w/ 4 screws 1 – Bass chorus circuit board 1 - 3pdt footswitch 3 - knobs 1 - AC adaptor jack 1 - ¼”stereo jack 1 - ¼”...
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Page 8: Populating The Circuit Board
Populating the Circuit Board Step 1: Add all the resistors. Resistors are not polarized and can be inserted in either direction. NOTE: Your kit will come with all or mostly 1/8 watt resistors. These are small and can lay down flat on the PCB. Your kit may come with some ¼ watt resistors. - Page 9 Add the diodes. Be sure to match the end of the diode with the stripe Step 2: to the layout on the PCB. The striped end should go in the square solder pad. The 1N4148 diodes will go in the 2 smaller spaces. The 1N4001 goes in the larger space.
- Page 10 Add 4 pin IC sockets. ONLY SOLDER THE SOCKET! NOT Step 3: THE ACTUAL IC! This is a socket. The sockets get soldered to the PCB. The ICs get inserted into the sockets. The actual IC chip itself, never gets soldered.
- Page 11 Step 4: Add the transistors. Orient them so that the flat side matches up with the flat side on the PCB layout.
- Page 12 Step 5: Add the 25k Trim pot. Note that there are 5 holes on the PCB, but only 3 leads on the actual trimpot. Please do not let this confuse you. This is so that the PCB can accommodate a variety of trimpots. There should only be one way to fit the trimpot into the PCB.
- Page 13 Step 6: Add the film and ceramic disc capacitors. These are non-polarized so they can go in either direction.
- Page 14 Step 7: Add the aluminum electrolytic capacitors. These ARE polarized, meaning there is a positive and negative end. The positive side will have a longer lead and goes in the square solder pad. The negative side will have a shorter lead and a stripe running along the body of the cap, and goes in the round solder pad.
- Page 15 At this point your board should look like this:...
- Page 16 Step 8: Add wires to the IN, OUT, LED, POS, and the two Ground eyelets located in the bottom corners of the board. . Start by cutting six 3.5” pieces of wire. Strip 1/4” off each end and tin the ends. Tinning means to apply some solder to the stripped ends of the wires.
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Page 17: Main Pcb Assembly
Main PCB Assembly Step 1: Flip the PCB over so that the bottom or solder side is up. Insert the three potentiometers, and the LED into the bottom side of the PCB. NOT SOLDER ANYTHING YET!!! The LED will have one lead that is longer than the other. - Page 19 Step 2: Hold the PCB in one hand so that the component side of the PCB is in the palm of your hand and the bottom side with the pots and LED are facing up. Now use your other hand to guide the predrilled enclosure onto the PCB assembly so that the pots and LED all go into their respective holes.
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Page 20: Wiring
Wiring Step 1: Mount the DC adapter jack to the enclosure. Your kit may come with either an external thread or internal thread. Don’t get confused by this. They still function exactly the same. You just thread the external nut on the outside and the internal nut on the inside. - Page 21 Stereo (Input) Jack Mono (Output) Jack Step 2: Install the 1/4” jacks to the enclosure. The stereo IN jack mounts on the same side as the DC adapter jack.
- Page 22 Step 3: Wire the “power section” of the pedal according to the diagram below. You should already have a wire connected to the POS eyelet of the PCB. Connect the other end of this wire to the sleeve terminal of the DC adapter jack. Connect the red battery wire to the battery terminal of the DC adapter jack.
- Page 23 Step 4: Install the footswitch. Orient the footswitch so that the flat sides of the solder lugs are like the diagram below. NOTE: There are no actual number markings on the footswitch. There are two correct ways you can orient the footswitch. They are both 180 degrees of each other. Either way is fine.
- Page 24 Step 6: Connect a wire to LUG 4 that also jumpers to LUG9. Strip about 1” off one end. Make sure there is enough insulated wire to make the connection to the TIP of the in jack. Carefully tin the stripped end. You may want to twist the wire strands together tightly before tinning.
- Page 25 Step 8: Wire the PCB to the foot switch. When you connect lug 2 of the foot switch and the ground eyelet to the left to the sleeve of the IN jack, it is best to do this at the same time so you only need to make one solder joint.
- Page 26 Installing IC/Finish up Don't forget to adjust the trimpot, add the knobs, put the cover on the enclosure, and apply the bumpers to the cover.
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Page 27: Operation Overview
Operating Overview Blend: Controls the ratio of wet vibrato signal to dry signal. Depth: Controls the intensity of the wet vibrato signal. Speed: Controls the speed of the wet vibrato signal. Power supply: 9V battery or 2.1mm negative tip. 9V ONLY!!!! Current Draw: 7.5mA Input Impedance: 470k ohms... - Page 28 Output Impedance: 100k ohms...
- Page 29 For hi-res schematic visit http://www.byocelctronics.com/basschorusschematic.pdf...
- Page 30 Please visit http://byocelectronics.com/board for any technical support copyright 2014 BYOC, Inc.
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